Application signing

All Symbian applications must be signed before they can be installed.
All applications which use
capability
-protected APIs, where the capability cannot be granted by the end
user, have to be certified. Such certification can be obtained through
Symbian Signed
.

Signing is a means of encoding a digital certificate into the
application installation file. The certificate identifies the application’s
vendor, and grants access to capabilities defined during the build
process.

Signing
options

When the end users are installing a self-signed application,
they are informed that the application is untrusted and may decide
to abort the installation. In Nokia E-series devices the user must
change a setting to allow self-signed applications to install.